10640540251 has 8 divisors (see below), whose sum is σ = 11613952944. Its totient is φ = 9668142720.

The previous prime is 10640540243. The next prime is 10640540291. The reversal of 10640540251 is 15204504601.

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 10640540251 - 2³ = 10640540243 is a prime.

It is a super-2 number, since 2×10640540251² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10640540291) 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, 231786 + ... + 273871.

It is an arithmetic number, because the mean of its divisors is an integer number (1451744118).

Almost surely, 2^10640540251 is an apocalyptic number.

10640540251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10640540251 is a deficient number, since it is larger than the sum of its proper divisors (973412693).

10640540251 is a wasteful number, since it uses less digits than its factorization.

10640540251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507581.

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 10640540251 in words is "ten billion, six hundred forty million, five hundred forty thousand, two hundred fifty-one".