406513661202 has 64 divisors (see below), whose sum is σ = 1043457552000. Its totient is φ = 115939722240.

The previous prime is 406513661171. The next prime is 406513661249. The reversal of 406513661202 is 202166315604.

406513661202 is a `hidden beast` number, since 4 + 0 + 6 + 5 + 1 + 36 + 612 + 0 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20118327 + ... + 20138522.

It is an arithmetic number, because the mean of its divisors is an integer number (16304024250).

Almost surely, 2^406513661202 is an apocalyptic number.

406513661202 is an abundant number, since it is smaller than the sum of its proper divisors (636943890798).

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

406513661202 is a wasteful number, since it uses less digits than its factorization.

406513661202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40256888 (or 40256882 counting only the distinct ones).

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

Adding to 406513661202 its reverse (202166315604), we get a palindrome (608679976806).

The spelling of 406513661202 in words is "four hundred six billion, five hundred thirteen million, six hundred sixty-one thousand, two hundred two".