10649616240 has 40 divisors (see below), whose sum is σ = 33013811088. Its totient is φ = 2839897600.

The previous prime is 10649616233. The next prime is 10649616259. The reversal of 10649616240 is 4261694601.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×10649616240² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22186461 + ... + 22186940.

Almost surely, 2^10649616240 is an apocalyptic number.

10649616240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10649616240 is an abundant number, since it is smaller than the sum of its proper divisors (22364194848).

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

10649616240 is a wasteful number, since it uses less digits than its factorization.

10649616240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44373417 (or 44373411 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 10649616240 in words is "ten billion, six hundred forty-nine million, six hundred sixteen thousand, two hundred forty".