19100000160 has 72 divisors (see below), whose sum is σ = 65178755460. Its totient is φ = 5093332992.

The previous prime is 19100000141. The next prime is 19100000189. The reversal of 19100000160 is 6100000191.

It can be written as a sum of positive squares in 2 ways, for example, as 17713480464 + 1386519696 = 133092^2 + 37236^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×19100000160² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6630505 + ... + 6633384.

Almost surely, 2^19100000160 is an apocalyptic number.

19100000160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19100000160 is an abundant number, since it is smaller than the sum of its proper divisors (46078755300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19100000160 is a wasteful number, since it uses less digits than its factorization.

19100000160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13263910 (or 13263899 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The spelling of 19100000160 in words is "nineteen billion, one hundred million, one hundred sixty", and thus it is an aban number.