70105967640 has 128 divisors (see below), whose sum is σ = 241744824000. Its totient is φ = 18050264064.

The previous prime is 70105967639. The next prime is 70105967647. The reversal of 70105967640 is 4676950107.

It is a happy number.

70105967640 is a `hidden beast` number, since 7 + 0 + 10 + 596 + 7 + 6 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70105967647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1087869 + ... + 1150508.

Almost surely, 2^70105967640 is an apocalyptic number.

It is an amenable number.

70105967640 is an abundant number, since it is smaller than the sum of its proper divisors (171638856360).

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

70105967640 is a wasteful number, since it uses less digits than its factorization.

70105967640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238426 (or 2238416 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 70105967640 in words is "seventy billion, one hundred five million, nine hundred sixty-seven thousand, six hundred forty".