100561063642 has 16 divisors (see below), whose sum is σ = 162509800320. Its totient is φ = 46394225712.

The previous prime is 100561063637. The next prime is 100561063661. The reversal of 100561063642 is 246360165001.

It is a super-2 number, since 2×100561063642² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100561063598 and 100561063607.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 707542 + ... + 837697.

It is an arithmetic number, because the mean of its divisors is an integer number (10156862520).

Almost surely, 2^100561063642 is an apocalyptic number.

100561063642 is a deficient number, since it is larger than the sum of its proper divisors (61948736678).

100561063642 is a wasteful number, since it uses less digits than its factorization.

100561063642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547757.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 100561063642 in words is "one hundred billion, five hundred sixty-one million, sixty-three thousand, six hundred forty-two".