70648001550 has 240 divisors, whose sum is σ = 228922029600. Its totient is φ = 16147797120.

The previous prime is 70648001537. The next prime is 70648001573. The reversal of 70648001550 is 5510084607.

70648001550 is a `hidden beast` number, since 7 + 0 + 648 + 0 + 0 + 1 + 5 + 5 + 0 = 666.

It is a super-2 number, since 2×70648001550² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1363722 + ... + 1414578.

It is an arithmetic number, because the mean of its divisors is an integer number (953841790).

Almost surely, 2^70648001550 is an apocalyptic number.

70648001550 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 70648001550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114461014800).

70648001550 is an abundant number, since it is smaller than the sum of its proper divisors (158274028050).

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

70648001550 is a wasteful number, since it uses less digits than its factorization.

70648001550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50902 (or 50874 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The spelling of 70648001550 in words is "seventy billion, six hundred forty-eight million, one thousand, five hundred fifty".