11640710461 has 8 divisors (see below), whose sum is σ = 12045552120. Its totient is φ = 11236098048.

The previous prime is 11640710453. The next prime is 11640710467. The reversal of 11640710461 is 16401704611.

It can be written as a sum of positive squares in 4 ways, for example, as 252619236 + 11388091225 = 15894^2 + 106715^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11640710461 - 2³ = 11640710453 is a prime.

It is a super-2 number, since 2×11640710461² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11640710467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49405 + ... + 160381.

It is an arithmetic number, because the mean of its divisors is an integer number (1505694015).

Almost surely, 2^11640710461 is an apocalyptic number.

It is an amenable number.

11640710461 is a deficient number, since it is larger than the sum of its proper divisors (404841659).

11640710461 is a wasteful number, since it uses less digits than its factorization.

11640710461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114623.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 11640710461 in words is "eleven billion, six hundred forty million, seven hundred ten thousand, four hundred sixty-one".