11654670520 has 16 divisors (see below), whose sum is σ = 26223008760. Its totient is φ = 4661868192.

The previous prime is 11654670491. The next prime is 11654670529. The reversal of 11654670520 is 2507645611.

It is a happy number.

It is a super-3 number, since 3×11654670520³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11654670520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11654670529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145683342 + ... + 145683421.

Almost surely, 2^11654670520 is an apocalyptic number.

11654670520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11654670520 is an abundant number, since it is smaller than the sum of its proper divisors (14568338240).

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

11654670520 is a wasteful number, since it uses less digits than its factorization.

11654670520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291366774 (or 291366770 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 11654670520 in words is "eleven billion, six hundred fifty-four million, six hundred seventy thousand, five hundred twenty".