1188410606640 has 120 divisors (see below), whose sum is σ = 4039164445680. Its totient is φ = 313091292672.

The previous prime is 1188410606627. The next prime is 1188410606653. The reversal of 1188410606640 is 466060148811.

1188410606640 is a `hidden beast` number, since 1 + 1 + 88 + 410 + 60 + 66 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (1188410606627) and next prime (1188410606653).

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9883435 + ... + 10002954.

It is an arithmetic number, because the mean of its divisors is an integer number (33659703714).

Almost surely, 2^{1188410606640} is an apocalyptic number.

1188410606640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1188410606640 is an abundant number, since it is smaller than the sum of its proper divisors (2850753839040).

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

1188410606640 is a wasteful number, since it uses less digits than its factorization.

1188410606640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19886491 (or 19886482 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 1188410606640 in words is "one trillion, one hundred eighty-eight billion, four hundred ten million, six hundred six thousand, six hundred forty".