1201664624140 has 12 divisors (see below), whose sum is σ = 2523495710736. Its totient is φ = 480665849648.

The previous prime is 1201664624129. The next prime is 1201664624179. The reversal of 1201664624140 is 414264661021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201664624140.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30041615584 + ... + 30041615623.

It is an arithmetic number, because the mean of its divisors is an integer number (210291309228).

Almost surely, 2^{1201664624140} is an apocalyptic number.

1201664624140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201664624140 is an abundant number, since it is smaller than the sum of its proper divisors (1321831086596).

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

1201664624140 is a wasteful number, since it uses less digits than its factorization.

1201664624140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60083231216 (or 60083231214 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 1201664624140 in words is "one trillion, two hundred one billion, six hundred sixty-four million, six hundred twenty-four thousand, one hundred forty".