1155716232738 has 16 divisors (see below), whose sum is σ = 2385994803456. Its totient is φ = 372811687920.

The previous prime is 1155716232703. The next prime is 1155716232743. The reversal of 1155716232738 is 8372326175511.

It is a super-2 number, since 2×1155716232738² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3106763881 + ... + 3106764252.

It is an arithmetic number, because the mean of its divisors is an integer number (149124675216).

Almost surely, 2^{1155716232738} is an apocalyptic number.

1155716232738 is an abundant number, since it is smaller than the sum of its proper divisors (1230278570718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1155716232738 is a wasteful number, since it uses less digits than its factorization.

1155716232738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6213528169.

The product of its digits is 2116800, while the sum is 51.

The spelling of 1155716232738 in words is "one trillion, one hundred fifty-five billion, seven hundred sixteen million, two hundred thirty-two thousand, seven hundred thirty-eight".