60661621500 has 96 divisors (see below), whose sum is σ = 182345060352. Its totient is φ = 15654600000.

The previous prime is 60661621487. The next prime is 60661621513. The reversal of 60661621500 is 512616606.

It is an interprime number because it is at equal distance from previous prime (60661621487) and next prime (60661621513).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 605776 + ... + 698775.

It is an arithmetic number, because the mean of its divisors is an integer number (1899427712).

Almost surely, 2^60661621500 is an apocalyptic number.

60661621500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

60661621500 is an abundant number, since it is smaller than the sum of its proper divisors (121683438852).

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

60661621500 is a wasteful number, since it uses less digits than its factorization.

60661621500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304604 (or 1304592 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 60661621500 in words is "sixty billion, six hundred sixty-one million, six hundred twenty-one thousand, five hundred".