70044415920 has 240 divisors, whose sum is σ = 249932565792. Its totient is φ = 17518878720.

The previous prime is 70044415913. The next prime is 70044415927. The reversal of 70044415920 is 2951444007.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (70044415913) and next prime (70044415927).

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (70044415927) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3576555 + ... + 3596085.

Almost surely, 2^70044415920 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 70044415920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124966282896).

70044415920 is an abundant number, since it is smaller than the sum of its proper divisors (179888149872).

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

70044415920 is a wasteful number, since it uses less digits than its factorization.

70044415920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19860 (or 19851 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

Adding to 70044415920 its reverse (2951444007), we get a palindrome (72995859927).

The spelling of 70044415920 in words is "seventy billion, forty-four million, four hundred fifteen thousand, nine hundred twenty".