161346813493772 has 12 divisors (see below), whose sum is σ = 285267819734520. Its totient is φ = 79841722141056.

The previous prime is 161346813493741. The next prime is 161346813493781. The reversal of 161346813493772 is 277394318643161.

It is a hoax number, since the sum of its digits (65) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 161346813493699 and 161346813493708.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207921151022 + ... + 207921151797.

It is an arithmetic number, because the mean of its divisors is an integer number (23772318311210).

Almost surely, 2^{161346813493772} is an apocalyptic number.

It is an amenable number.

161346813493772 is a deficient number, since it is larger than the sum of its proper divisors (123921006240748).

161346813493772 is a wasteful number, since it uses less digits than its factorization.

161346813493772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415842302920 (or 415842302918 counting only the distinct ones).

The product of its digits is 109734912, while the sum is 65.

The spelling of 161346813493772 in words is "one hundred sixty-one trillion, three hundred forty-six billion, eight hundred thirteen million, four hundred ninety-three thousand, seven hundred seventy-two".