402020101020204 has 72 divisors (see below), whose sum is σ = 1027007423900640. Its totient is φ = 132585733632000.

The previous prime is 402020101020179. The next prime is 402020101020217.

402020101020204 is a `hidden beast` number, since 402 + 0 + 20 + 10 + 10 + 20 + 204 = 666.

402020101020204 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 34112712 + ... + 44358959.

It is an arithmetic number, because the mean of its divisors is an integer number (14263991998620).

Almost surely, 2^{402020101020204} is an apocalyptic number.

It is an amenable number.

402020101020204 is an abundant number, since it is smaller than the sum of its proper divisors (624987322880436).

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

402020101020204 is a wasteful number, since it uses less digits than its factorization.

402020101020204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78473191 (or 78473186 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

It can be divided in two parts, 40202010 and 1020204, that added together give a palindrome (41222214).

The spelling of 402020101020204 in words is "four hundred two trillion, twenty billion, one hundred one million, twenty thousand, two hundred four".