152772155557 has 6 divisors (see below), whose sum is σ = 177714548358. Its totient is φ = 130947561864.

The previous prime is 152772155539. The next prime is 152772155563. The reversal of 152772155557 is 755551277251.

It can be written as a sum of positive squares in only one way, i.e., 142979271876 + 9792883681 = 378126^2 + 98959^2 .

It is a de Polignac number, because none of the positive numbers 2^k-152772155557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152772155507) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1558899498 + ... + 1558899595.

It is an arithmetic number, because the mean of its divisors is an integer number (29619091393).

Almost surely, 2^152772155557 is an apocalyptic number.

It is an amenable number.

152772155557 is a deficient number, since it is larger than the sum of its proper divisors (24942392801).

152772155557 is an equidigital number, since it uses as much as digits as its factorization.

152772155557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3117799107 (or 3117799100 counting only the distinct ones).

The product of its digits is 4287500, while the sum is 52.

The spelling of 152772155557 in words is "one hundred fifty-two billion, seven hundred seventy-two million, one hundred fifty-five thousand, five hundred fifty-seven".