190606959681 has 8 divisors (see below), whose sum is σ = 254298822624. Its totient is φ = 126993201600.

The previous prime is 190606959679. The next prime is 190606959689. The reversal of 190606959681 is 186959606091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 190606959681 - 2¹ = 190606959679 is a prime.

It is a super-2 number, since 2×190606959681² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190606959689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19520520 + ... + 19530281.

It is an arithmetic number, because the mean of its divisors is an integer number (31787352828).

Almost surely, 2^190606959681 is an apocalyptic number.

It is an amenable number.

190606959681 is a deficient number, since it is larger than the sum of its proper divisors (63691862943).

190606959681 is a wasteful number, since it uses less digits than its factorization.

190606959681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39052431.

The product of its (nonzero) digits is 6298560, while the sum is 60.

The spelling of 190606959681 in words is "one hundred ninety billion, six hundred six million, nine hundred fifty-nine thousand, six hundred eighty-one".