90670172915025 has 162 divisors, whose sum is σ = 184873861076450. Its totient is φ = 42445378483200.

The previous prime is 90670172915017. The next prime is 90670172915033. The reversal of 90670172915025 is 52051927107609.

It is a happy number.

90670172915025 is a `hidden beast` number, since 9 + 0 + 67 + 0 + 1 + 72 + 9 + 1 + 502 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (90670172915017) and next prime (90670172915033).

It can be written as a sum of positive squares in 9 ways, for example, as 6279474668544 + 84390698246481 = 2505888^2 + 9186441^2 .

It is not a de Polignac number, because 90670172915025 - 2³ = 90670172915017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 161 ways as a sum of consecutive naturals, for example, 20916201 + ... + 24876249.

Almost surely, 2^{90670172915025} is an apocalyptic number.

It is an amenable number.

90670172915025 is an abundant number, since it is smaller than the sum of its proper divisors (94203688161425).

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

90670172915025 is a wasteful number, since it uses less digits than its factorization.

90670172915025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3960145 (or 3960097 counting only the distinct ones).

The product of its (nonzero) digits is 2381400, while the sum is 54.

The spelling of 90670172915025 in words is "ninety trillion, six hundred seventy billion, one hundred seventy-two million, nine hundred fifteen thousand, twenty-five".