1000655157564 has 96 divisors (see below), whose sum is σ = 2747500741440. Its totient is φ = 313861976064.

The previous prime is 1000655157539. The next prime is 1000655157577. The reversal of 1000655157564 is 4657515560001.

It is a happy number.

1000655157564 is a `hidden beast` number, since 1 + 0 + 0 + 0 + 6 + 5 + 515 + 75 + 64 = 666.

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, 8632212 + ... + 8747364.

It is an arithmetic number, because the mean of its divisors is an integer number (28619799390).

Almost surely, 2^{1000655157564} 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 1000655157564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1373750370720).

1000655157564 is an abundant number, since it is smaller than the sum of its proper divisors (1746845583876).

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

1000655157564 is a wasteful number, since it uses less digits than its factorization.

1000655157564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119916 (or 119908 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 45.

The spelling of 1000655157564 in words is "one trillion, six hundred fifty-five million, one hundred fifty-seven thousand, five hundred sixty-four".