199519046664 has 64 divisors (see below), whose sum is σ = 600057292800. Its totient is φ = 54005154624.

The previous prime is 199519046641. The next prime is 199519046677. The reversal of 199519046664 is 466640915991.

It is a super-2 number, since 2×199519046664² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 199519046598 and 199519046607.

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, 31249792 + ... + 31256175.

It is an arithmetic number, because the mean of its divisors is an integer number (9375895200).

Almost surely, 2^199519046664 is an apocalyptic number.

199519046664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

199519046664 is an abundant number, since it is smaller than the sum of its proper divisors (400538246136).

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

199519046664 is a wasteful number, since it uses less digits than its factorization.

199519046664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62506002 (or 62505998 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 60.

The spelling of 199519046664 in words is "one hundred ninety-nine billion, five hundred nineteen million, forty-six thousand, six hundred sixty-four".