22002000078 has 32 divisors (see below), whose sum is σ = 45444648960. Its totient is φ = 7094112480.

The previous prime is 22002000073. The next prime is 22002000079. The reversal of 22002000078 is 87000020022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002000073) 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, 389643 + ... + 442521.

It is an arithmetic number, because the mean of its divisors is an integer number (1420145280).

Almost surely, 2^22002000078 is an apocalyptic number.

22002000078 is an abundant number, since it is smaller than the sum of its proper divisors (23442648882).

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

22002000078 is a wasteful number, since it uses less digits than its factorization.

22002000078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55152.

The product of its (nonzero) digits is 448, while the sum is 21.

The spelling of 22002000078 in words is "twenty-two billion, two million, seventy-eight", and thus it is an aban number and an uban number.