161632470770 has 16 divisors (see below), whose sum is σ = 300323559168. Its totient is φ = 62567407920.

The previous prime is 161632470757. The next prime is 161632470803. The reversal of 161632470770 is 77074236161.

It is a super-2 number, since 2×161632470770² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260697224 + ... + 260697843.

It is an arithmetic number, because the mean of its divisors is an integer number (18770222448).

Almost surely, 2^161632470770 is an apocalyptic number.

161632470770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161632470770 is a deficient number, since it is larger than the sum of its proper divisors (138691088398).

161632470770 is a wasteful number, since it uses less digits than its factorization.

161632470770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521395105.

The product of its (nonzero) digits is 296352, while the sum is 44.

The spelling of 161632470770 in words is "one hundred sixty-one billion, six hundred thirty-two million, four hundred seventy thousand, seven hundred seventy".