461236156020 has 72 divisors (see below), whose sum is σ = 1400723663976. Its totient is φ = 122852074752.

The previous prime is 461236155973. The next prime is 461236156079. The reversal of 461236156020 is 20651632164.

461236156020 is a `hidden beast` number, since 4 + 6 + 1 + 2 + 36 + 15 + 602 + 0 = 666.

461236156020 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 49025930724 + 412210225296 = 221418^2 + 642036^2 .

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

It is a congruent number.

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, 1348467 + ... + 1655546.

It is an arithmetic number, because the mean of its divisors is an integer number (19454495333).

Almost surely, 2^461236156020 is an apocalyptic number.

It is an amenable number.

461236156020 is an abundant number, since it is smaller than the sum of its proper divisors (939487507956).

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

461236156020 is a wasteful number, since it uses less digits than its factorization.

461236156020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3004881 (or 3004876 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 461236156020 its reverse (20651632164), we get a palindrome (481887788184).

The spelling of 461236156020 in words is "four hundred sixty-one billion, two hundred thirty-six million, one hundred fifty-six thousand, twenty".