161723427083528 has 64 divisors (see below), whose sum is σ = 319125822753600. Its totient is φ = 76725421597440.

The previous prime is 161723427083527. The next prime is 161723427083531. The reversal of 161723427083528 is 825380724327161.

It is not an unprimeable number, because it can be changed into a prime (161723427083527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5812550 + ... + 18900597.

It is an arithmetic number, because the mean of its divisors is an integer number (4986340980525).

Almost surely, 2^{161723427083528} is an apocalyptic number.

It is an amenable number.

161723427083528 is a deficient number, since it is larger than the sum of its proper divisors (157402395670072).

161723427083528 is a wasteful number, since it uses less digits than its factorization.

161723427083528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24713670 (or 24713666 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 59.

The spelling of 161723427083528 in words is "one hundred sixty-one trillion, seven hundred twenty-three billion, four hundred twenty-seven million, eighty-three thousand, five hundred twenty-eight".