9261616401 has 6 divisors (see below), whose sum is σ = 13377890370. Its totient is φ = 6174410928.

The previous prime is 9261616381. The next prime is 9261616411. The reversal of 9261616401 is 1046161629.

9261616401 is a `hidden beast` number, since 9 + 2 + 6 + 1 + 6 + 1 + 640 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7417343376 + 1844273025 = 86124^2 + 42945^2 .

It is not a de Polignac number, because 9261616401 - 2⁵ = 9261616369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9261616411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 514534236 + ... + 514534253.

It is an arithmetic number, because the mean of its divisors is an integer number (2229648395).

Almost surely, 2^9261616401 is an apocalyptic number.

It is an amenable number.

9261616401 is a deficient number, since it is larger than the sum of its proper divisors (4116273969).

9261616401 is a wasteful number, since it uses less digits than its factorization.

9261616401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029068495 (or 1029068492 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 9261616401 is about 96237.2921533020. The cubic root of 9261616401 is about 2100.0465901228.

The spelling of 9261616401 in words is "nine billion, two hundred sixty-one million, six hundred sixteen thousand, four hundred one".