190657987065 has 48 divisors (see below), whose sum is σ = 406737047808. Its totient is φ = 80453478528.

The previous prime is 190657987049. The next prime is 190657987073. The reversal of 190657987065 is 560789756091.

It is not a de Polignac number, because 190657987065 - 2⁴ = 190657987049 is a prime.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 190657986993 and 190657987011.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23275269 + ... + 23283458.

It is an arithmetic number, because the mean of its divisors is an integer number (8473688496).

Almost surely, 2^190657987065 is an apocalyptic number.

190657987065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

190657987065 is an abundant number, since it is smaller than the sum of its proper divisors (216079060743).

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

190657987065 is a wasteful number, since it uses less digits than its factorization.

190657987065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46558758 (or 46558755 counting only the distinct ones).

The product of its (nonzero) digits is 28576800, while the sum is 63.

The spelling of 190657987065 in words is "one hundred ninety billion, six hundred fifty-seven million, nine hundred eighty-seven thousand, sixty-five".