162180210772 has 6 divisors (see below), whose sum is σ = 283815368858. Its totient is φ = 81090105384.

The previous prime is 162180210767. The next prime is 162180210809. The reversal of 162180210772 is 277012081261.

It can be written as a sum of positive squares in only one way, i.e., 162172122436 + 8088336 = 402706^2 + 2844^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20272526343 + ... + 20272526350.

Almost surely, 2^162180210772 is an apocalyptic number.

It is an amenable number.

162180210772 is a deficient number, since it is larger than the sum of its proper divisors (121635158086).

162180210772 is a wasteful number, since it uses less digits than its factorization.

162180210772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40545052697 (or 40545052695 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 37.

The spelling of 162180210772 in words is "one hundred sixty-two billion, one hundred eighty million, two hundred ten thousand, seven hundred seventy-two".