35661315565425 has 192 divisors, whose sum is σ = 69265223884800. Its totient is φ = 15996703641600.

The previous prime is 35661315565399. The next prime is 35661315565453. The reversal of 35661315565425 is 52456551316653.

It is not a de Polignac number, because 35661315565425 - 2²² = 35661311371121 is a prime.

It is a super-3 number, since 3×35661315565425³ (a number of 42 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 450064711 + ... + 450143939.

It is an arithmetic number, because the mean of its divisors is an integer number (360756374400).

Almost surely, 2^{35661315565425} is an apocalyptic number.

It is an amenable number.

35661315565425 is a deficient number, since it is larger than the sum of its proper divisors (33603908319375).

35661315565425 is a wasteful number, since it uses less digits than its factorization.

35661315565425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79816 (or 79811 counting only the distinct ones).

The product of its digits is 48600000, while the sum is 57.

The spelling of 35661315565425 in words is "thirty-five trillion, six hundred sixty-one billion, three hundred fifteen million, five hundred sixty-five thousand, four hundred twenty-five".