100515540551646 has 64 divisors (see below), whose sum is σ = 221475052970496. Its totient is φ = 30158190182400.

The previous prime is 100515540551561. The next prime is 100515540551683. The reversal of 100515540551646 is 646155045515001.

It is a junction number, because it is equal to n+sod(n) for n = 100515540551595 and 100515540551604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37149406 + ... + 39763166.

It is an arithmetic number, because the mean of its divisors is an integer number (3460547702664).

Almost surely, 2^{100515540551646} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100515540551646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110737526485248).

100515540551646 is an abundant number, since it is smaller than the sum of its proper divisors (120959512418850).

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

100515540551646 is a wasteful number, since it uses less digits than its factorization.

100515540551646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2619537.

The product of its (nonzero) digits is 1800000, while the sum is 48.

The spelling of 100515540551646 in words is "one hundred trillion, five hundred fifteen billion, five hundred forty million, five hundred fifty-one thousand, six hundred forty-six".