163457964457730 has 32 divisors (see below), whose sum is σ = 294275785420224. Its totient is φ = 65371753647936.

The previous prime is 163457964457721. The next prime is 163457964457741. The reversal of 163457964457730 is 37754469754361.

It is a super-2 number, since 2×163457964457730² (a number of 29 digits) contains 22 as substring.

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, 1514525549 + ... + 1514633471.

It is an arithmetic number, because the mean of its divisors is an integer number (9196118294382).

Almost surely, 2^{163457964457730} is an apocalyptic number.

163457964457730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163457964457730 is a deficient number, since it is larger than the sum of its proper divisors (130817820962494).

163457964457730 is a wasteful number, since it uses less digits than its factorization.

163457964457730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133010.

The product of its (nonzero) digits is 1600300800, while the sum is 71.

The spelling of 163457964457730 in words is "one hundred sixty-three trillion, four hundred fifty-seven billion, nine hundred sixty-four million, four hundred fifty-seven thousand, seven hundred thirty".