205462419916 has 144 divisors (see below), whose sum is σ = 418157752320. Its totient is φ = 88077749760.

The previous prime is 205462419791. The next prime is 205462419931. The reversal of 205462419916 is 619914264502.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 205462419916.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 127694920 + ... + 127696528.

It is an arithmetic number, because the mean of its divisors is an integer number (2903873280).

Almost surely, 2^205462419916 is an apocalyptic number.

205462419916 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

205462419916 is an abundant number, since it is smaller than the sum of its proper divisors (212695332404).

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

205462419916 is a wasteful number, since it uses less digits than its factorization.

205462419916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1896 (or 1881 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 205462419916 in words is "two hundred five billion, four hundred sixty-two million, four hundred nineteen thousand, nine hundred sixteen".