1552915973952 has 672 divisors, whose sum is σ = 5584891852800. Its totient is φ = 402778607616.

The previous prime is 1552915973909. The next prime is 1552915973971. The reversal of 1552915973952 is 2593795192551.

1552915973952 is a `hidden beast` number, since 1 + 5 + 5 + 2 + 9 + 1 + 597 + 39 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 1552915973952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 158666403 + ... + 158676189.

Almost surely, 2^{1552915973952} is an apocalyptic number.

1552915973952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1552915973952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2792445926400).

1552915973952 is an abundant number, since it is smaller than the sum of its proper divisors (4031975878848).

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

1552915973952 is a wasteful number, since it uses less digits than its factorization.

1552915973952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9923 (or 9910 counting only the distinct ones).

The product of its digits is 38272500, while the sum is 63.

The spelling of 1552915973952 in words is "one trillion, five hundred fifty-two billion, nine hundred fifteen million, nine hundred seventy-three thousand, nine hundred fifty-two".