199272440658 has 32 divisors (see below), whose sum is σ = 431802398016. Its totient is φ = 61062962688.

The previous prime is 199272440623. The next prime is 199272440677. The reversal of 199272440658 is 856044272991.

It is a super-2 number, since 2×199272440658² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 199272440598 and 199272440607.

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, 22712491 + ... + 22721262.

It is an arithmetic number, because the mean of its divisors is an integer number (13493824938).

Almost surely, 2^199272440658 is an apocalyptic number.

199272440658 is an abundant number, since it is smaller than the sum of its proper divisors (232529957358).

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

199272440658 is a wasteful number, since it uses less digits than its factorization.

199272440658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45433818.

The product of its (nonzero) digits is 8709120, while the sum is 57.

The spelling of 199272440658 in words is "one hundred ninety-nine billion, two hundred seventy-two million, four hundred forty thousand, six hundred fifty-eight".