195625751615 has 32 divisors (see below), whose sum is σ = 269508484224. Its totient is φ = 133533204480.

The previous prime is 195625751611. The next prime is 195625751621. The reversal of 195625751615 is 516157526591.

It is a Cunningham number, because it is equal to 442296²-1.

It is not a de Polignac number, because 195625751615 - 2² = 195625751611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195625751611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15474077 + ... + 15486713.

It is an arithmetic number, because the mean of its divisors is an integer number (8422140132).

Almost surely, 2^195625751615 is an apocalyptic number.

195625751615 is a deficient number, since it is larger than the sum of its proper divisors (73882732609).

195625751615 is a wasteful number, since it uses less digits than its factorization.

195625751615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14627.

The product of its digits is 2835000, while the sum is 53.

The spelling of 195625751615 in words is "one hundred ninety-five billion, six hundred twenty-five million, seven hundred fifty-one thousand, six hundred fifteen".