70663444992 has 240 divisors, whose sum is σ = 235347615360. Its totient is φ = 19992600576.

The previous prime is 70663444979. The next prime is 70663445003. The reversal of 70663444992 is 29944436607.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3311734 + ... + 3333002.

It is an arithmetic number, because the mean of its divisors is an integer number (980615064).

Almost surely, 2^70663444992 is an apocalyptic number.

70663444992 is a gapful number since it is divisible by the number (72) 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 70663444992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117673807680).

70663444992 is an abundant number, since it is smaller than the sum of its proper divisors (164684170368).

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

70663444992 is a wasteful number, since it uses less digits than its factorization.

70663444992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21403 (or 21384 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 54.

The spelling of 70663444992 in words is "seventy billion, six hundred sixty-three million, four hundred forty-four thousand, nine hundred ninety-two".