190564261946 has 16 divisors (see below), whose sum is σ = 300399231264. Its totient is φ = 90550961424.

The previous prime is 190564261933. The next prime is 190564262011. The reversal of 190564261946 is 649162465091.

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, 29940920 + ... + 29947283.

It is an arithmetic number, because the mean of its divisors is an integer number (18774951954).

Almost surely, 2^190564261946 is an apocalyptic number.

190564261946 is a deficient number, since it is larger than the sum of its proper divisors (109834969318).

190564261946 is a wasteful number, since it uses less digits than its factorization.

190564261946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59888285.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 190564261946 in words is "one hundred ninety billion, five hundred sixty-four million, two hundred sixty-one thousand, nine hundred forty-six".