1166624260640 has 48 divisors (see below), whose sum is σ = 2787117825240. Its totient is φ = 461406443520.

The previous prime is 1166624260583. The next prime is 1166624260657. The reversal of 1166624260640 is 460624266611.

It can be written as a sum of positive squares in 4 ways, for example, as 889935636496 + 276688624144 = 943364^2 + 526012^2 .

It is a super-2 number, since 2×1166624260640² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1166624260591 and 1166624260600.

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, 40948691 + ... + 40977170.

Almost surely, 2^{1166624260640} is an apocalyptic number.

1166624260640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1166624260640 is an abundant number, since it is smaller than the sum of its proper divisors (1620493564600).

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

1166624260640 is an equidigital number, since it uses as much as digits as its factorization.

1166624260640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81925965 (or 81925957 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 1166624260640 in words is "one trillion, one hundred sixty-six billion, six hundred twenty-four million, two hundred sixty thousand, six hundred forty".