130693487661 has 16 divisors (see below), whose sum is σ = 211221798720. Its totient is φ = 79208174160.

The previous prime is 130693487657. The next prime is 130693487663. The reversal of 130693487661 is 166784396031.

It is a happy number.

130693487661 is a `hidden beast` number, since 13 + 0 + 6 + 93 + 487 + 6 + 61 = 666.

It is not a de Polignac number, because 130693487661 - 2² = 130693487657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130693487598 and 130693487607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130693487663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220022410 + ... + 220023003.

It is an arithmetic number, because the mean of its divisors is an integer number (13201362420).

Almost surely, 2^130693487661 is an apocalyptic number.

130693487661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

130693487661 is a deficient number, since it is larger than the sum of its proper divisors (80528311059).

130693487661 is a wasteful number, since it uses less digits than its factorization.

130693487661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440045433 (or 440045427 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 130693487661 in words is "one hundred thirty billion, six hundred ninety-three million, four hundred eighty-seven thousand, six hundred sixty-one".