161127905802 has 64 divisors (see below), whose sum is σ = 350986825728. Its totient is φ = 49112064000.

The previous prime is 161127905797. The next prime is 161127905803. The reversal of 161127905802 is 208509721161.

It is not an unprimeable number, because it can be changed into a prime (161127905803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 927927 + ... + 1087797.

It is an arithmetic number, because the mean of its divisors is an integer number (5484169152).

Almost surely, 2^161127905802 is an apocalyptic number.

161127905802 is an abundant number, since it is smaller than the sum of its proper divisors (189858919926).

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

161127905802 is a wasteful number, since it uses less digits than its factorization.

161127905802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160175.

The product of its (nonzero) digits is 60480, while the sum is 42.

The spelling of 161127905802 in words is "one hundred sixty-one billion, one hundred twenty-seven million, nine hundred five thousand, eight hundred two".