161447143190 has 32 divisors (see below), whose sum is σ = 291163299840. Its totient is φ = 64454860000.

The previous prime is 161447143183. The next prime is 161447143301. The reversal of 161447143190 is 91341744161.

It is a super-2 number, since 2×161447143190² (a number of 23 digits) contains 22 as substring.

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, 16898915 + ... + 16908465.

It is an arithmetic number, because the mean of its divisors is an integer number (9098853120).

Almost surely, 2^161447143190 is an apocalyptic number.

161447143190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161447143190 is a deficient number, since it is larger than the sum of its proper divisors (129716156650).

161447143190 is a wasteful number, since it uses less digits than its factorization.

161447143190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12628.

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 161447143190 in words is "one hundred sixty-one billion, four hundred forty-seven million, one hundred forty-three thousand, one hundred ninety".