151261521055772 has 48 divisors (see below), whose sum is σ = 268973260416000. Its totient is φ = 74416415640000.

The previous prime is 151261521055759. The next prime is 151261521055783. The reversal of 151261521055772 is 277550125162151.

It is a super-2 number, since 2×151261521055772² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 151261521055772.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319476158 + ... + 319949274.

It is an arithmetic number, because the mean of its divisors is an integer number (5603609592000).

Almost surely, 2^{151261521055772} is an apocalyptic number.

It is an amenable number.

151261521055772 is a deficient number, since it is larger than the sum of its proper divisors (117711739360228).

151261521055772 is a wasteful number, since it uses less digits than its factorization.

151261521055772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475442 (or 475440 counting only the distinct ones).

The product of its (nonzero) digits is 1470000, while the sum is 50.

The spelling of 151261521055772 in words is "one hundred fifty-one trillion, two hundred sixty-one billion, five hundred twenty-one million, fifty-five thousand, seven hundred seventy-two".