268151564 has 12 divisors (see below), whose sum is σ = 469584024. Its totient is φ = 133984704.

The previous prime is 268151563. The next prime is 268151567. The reversal of 268151564 is 465151862.

It is a happy number.

It is a super-2 number, since 2×268151564² = 143810522551292192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (268151561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15917 + ... + 28100.

It is an arithmetic number, because the mean of its divisors is an integer number (39132002).

Almost surely, 2^268151564 is an apocalyptic number.

It is an amenable number.

268151564 is a deficient number, since it is larger than the sum of its proper divisors (201432460).

268151564 is a wasteful number, since it uses less digits than its factorization.

268151564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45544 (or 45542 counting only the distinct ones).

The product of its digits is 57600, while the sum is 38.

The square root of 268151564 is about 16375.3340118606. The cubic root of 268151564 is about 644.8520895541.

It can be divided in two parts, 2681 and 51564, that added together give a palindrome (54245).

The spelling of 268151564 in words is "two hundred sixty-eight million, one hundred fifty-one thousand, five hundred sixty-four".