164561555147612 has 48 divisors (see below), whose sum is σ = 329230237136640. Its totient is φ = 70503428806272.

The previous prime is 164561555147603. The next prime is 164561555147623. The reversal of 164561555147612 is 216741555165461.

It is a congruent number.

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, 1138218464 + ... + 1138363032.

It is an arithmetic number, because the mean of its divisors is an integer number (6858963273680).

Almost surely, 2^{164561555147612} is an apocalyptic number.

It is an amenable number.

164561555147612 is an abundant number, since it is smaller than the sum of its proper divisors (164668681989028).

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

164561555147612 is a wasteful number, since it uses less digits than its factorization.

164561555147612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157530 (or 157528 counting only the distinct ones).

The product of its digits is 30240000, while the sum is 59.

The spelling of 164561555147612 in words is "one hundred sixty-four trillion, five hundred sixty-one billion, five hundred fifty-five million, one hundred forty-seven thousand, six hundred twelve".