10671154640 has 20 divisors (see below), whose sum is σ = 24810434724. Its totient is φ = 4268461824.

The previous prime is 10671154633. The next prime is 10671154687. The reversal of 10671154640 is 4645117601.

It can be written as a sum of positive squares in 2 ways, for example, as 5238285376 + 5432869264 = 72376^2 + 73708^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×10671154640² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10671154640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66694637 + ... + 66694796.

Almost surely, 2^10671154640 is an apocalyptic number.

10671154640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10671154640 is an abundant number, since it is smaller than the sum of its proper divisors (14139280084).

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

10671154640 is a wasteful number, since it uses less digits than its factorization.

10671154640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133389446 (or 133389440 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 10671154640 in words is "ten billion, six hundred seventy-one million, one hundred fifty-four thousand, six hundred forty".