161464654646634 has 32 divisors (see below), whose sum is σ = 329426035585920. Its totient is φ = 52749537841152.

The previous prime is 161464654646627. The next prime is 161464654646683. The reversal of 161464654646634 is 436646456464161.

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, 1346690919 + ... + 1346810810.

It is an arithmetic number, because the mean of its divisors is an integer number (10294563612060).

Almost surely, 2^{161464654646634} is an apocalyptic number.

161464654646634 is an abundant number, since it is smaller than the sum of its proper divisors (167961380939286).

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

161464654646634 is a wasteful number, since it uses less digits than its factorization.

161464654646634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2693501934.

The product of its digits is 716636160, while the sum is 66.

The spelling of 161464654646634 in words is "one hundred sixty-one trillion, four hundred sixty-four billion, six hundred fifty-four million, six hundred forty-six thousand, six hundred thirty-four".