70551023729536 has 128 divisors (see below), whose sum is σ = 161891895663360. Its totient is φ = 29998782689280.

The previous prime is 70551023729533. The next prime is 70551023729587. The reversal of 70551023729536 is 63592732015507.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70551023729533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222145191 + ... + 222462553.

It is an arithmetic number, because the mean of its divisors is an integer number (1264780434870).

Almost surely, 2^{70551023729536} 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 70551023729536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80945947831680).

70551023729536 is an abundant number, since it is smaller than the sum of its proper divisors (91340871933824).

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

70551023729536 is a wasteful number, since it uses less digits than its factorization.

70551023729536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319332 (or 319320 counting only the distinct ones).

The product of its (nonzero) digits is 11907000, while the sum is 55.

The spelling of 70551023729536 in words is "seventy trillion, five hundred fifty-one billion, twenty-three million, seven hundred twenty-nine thousand, five hundred thirty-six".