151968586440 has 64 divisors (see below), whose sum is σ = 497351741760. Its totient is φ = 36840869120.

The previous prime is 151968586433. The next prime is 151968586493. The reversal of 151968586440 is 44685869151.

It is a happy number.

It is a super-5 number, since 5×151968586440⁵ (a number of 57 digits) contains 55555 as substring. Note that it is a super-d number also for d = 3.

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, 57562539 + ... + 57565178.

It is an arithmetic number, because the mean of its divisors is an integer number (7771120965).

Almost surely, 2^151968586440 is an apocalyptic number.

151968586440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151968586440 is an abundant number, since it is smaller than the sum of its proper divisors (345383155320).

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

151968586440 is a wasteful number, since it uses less digits than its factorization.

151968586440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115127742 (or 115127738 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 57.

The spelling of 151968586440 in words is "one hundred fifty-one billion, nine hundred sixty-eight million, five hundred eighty-six thousand, four hundred forty".