100461637866861 has 12 divisors (see below), whose sum is σ = 145950048078588. Its totient is φ = 66587289837504.

The previous prime is 100461637866809. The next prime is 100461637866869. The reversal of 100461637866861 is 168668736164001.

100461637866861 is a `hidden beast` number, since 1 + 0 + 0 + 4 + 616 + 3 + 7 + 8 + 6 + 6 + 8 + 6 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 52976707820100 + 47484930046761 = 7278510^2 + 6890931^2 .

It is not a de Polignac number, because 100461637866861 - 2¹⁴ = 100461637850477 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100461637866869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32261282280 + ... + 32261285393.

It is an arithmetic number, because the mean of its divisors is an integer number (12162504006549).

Almost surely, 2^{100461637866861} is an apocalyptic number.

It is an amenable number.

100461637866861 is a deficient number, since it is larger than the sum of its proper divisors (45488410211727).

100461637866861 is a wasteful number, since it uses less digits than its factorization.

100461637866861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64522567852 (or 64522567849 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 63.

The spelling of 100461637866861 in words is "one hundred trillion, four hundred sixty-one billion, six hundred thirty-seven million, eight hundred sixty-six thousand, eight hundred sixty-one".