10155505664 has 48 divisors (see below), whose sum is σ = 20461601160. Its totient is φ = 5038858240.

The previous prime is 10155505663. The next prime is 10155505669. The reversal of 10155505664 is 46650555101.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10155505663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249362 + ... + 287214.

Almost surely, 2^10155505664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10155505664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10230800580).

10155505664 is an abundant number, since it is smaller than the sum of its proper divisors (10306095496).

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

10155505664 is an equidigital number, since it uses as much as digits as its factorization.

10155505664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38006 (or 37986 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 10155505664 in words is "ten billion, one hundred fifty-five million, five hundred five thousand, six hundred sixty-four".