190918202001 has 16 divisors (see below), whose sum is σ = 258374623488. Its totient is φ = 125370550800.

The previous prime is 190918201997. The next prime is 190918202009. The reversal of 190918202001 is 100202819091.

It is not a de Polignac number, because 190918202001 - 2² = 190918201997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (190918202009) 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, 4459186 + ... + 4501796.

It is an arithmetic number, because the mean of its divisors is an integer number (16148413968).

Almost surely, 2^190918202001 is an apocalyptic number.

It is an amenable number.

190918202001 is a deficient number, since it is larger than the sum of its proper divisors (67456421487).

190918202001 is a wasteful number, since it uses less digits than its factorization.

190918202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64972.

The product of its (nonzero) digits is 2592, while the sum is 33.

The spelling of 190918202001 in words is "one hundred ninety billion, nine hundred eighteen million, two hundred two thousand, one".