6156557377400 has 24 divisors (see below), whose sum is σ = 14313995902920. Its totient is φ = 2462622950880.

The previous prime is 6156557377343. The next prime is 6156557377433. The reversal of 6156557377400 is 47737556516.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15391393244 + ... + 15391393643.

It is an arithmetic number, because the mean of its divisors is an integer number (596416495955).

Almost surely, 2^{6156557377400} is an apocalyptic number.

It is an amenable number.

6156557377400 is an abundant number, since it is smaller than the sum of its proper divisors (8157438525520).

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

6156557377400 is a wasteful number, since it uses less digits than its factorization.

6156557377400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30782786903 (or 30782786894 counting only the distinct ones).

The product of its (nonzero) digits is 18522000, while the sum is 56.

The spelling of 6156557377400 in words is "six trillion, one hundred fifty-six billion, five hundred fifty-seven million, three hundred seventy-seven thousand, four hundred".