161070130656402 has 128 divisors (see below), whose sum is σ = 372073114828800. Its totient is φ = 46008503735040.

The previous prime is 161070130656367. The next prime is 161070130656569. The reversal of 161070130656402 is 204656031070161.

It is a super-2 number, since 2×161070130656402² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25921468 + ... + 31528760.

It is an arithmetic number, because the mean of its divisors is an integer number (2906821209600).

Almost surely, 2^{161070130656402} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161070130656402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186036557414400).

161070130656402 is an abundant number, since it is smaller than the sum of its proper divisors (211002984172398).

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

161070130656402 is a wasteful number, since it uses less digits than its factorization.

161070130656402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5607608.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 161070130656402 in words is "one hundred sixty-one trillion, seventy billion, one hundred thirty million, six hundred fifty-six thousand, four hundred two".