204155401362 has 24 divisors (see below), whose sum is σ = 448804437648. Its totient is φ = 61865272920.

The previous prime is 204155401361. The next prime is 204155401363. The reversal of 204155401362 is 263104551402.

It is an interprime number because it is at equal distance from previous prime (204155401361) and next prime (204155401363).

It is a super-2 number, since 2×204155401362² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (204155401361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140602168 + ... + 140603619.

It is an arithmetic number, because the mean of its divisors is an integer number (18700184902).

Almost surely, 2^204155401362 is an apocalyptic number.

204155401362 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

204155401362 is an abundant number, since it is smaller than the sum of its proper divisors (244649036286).

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

204155401362 is a wasteful number, since it uses less digits than its factorization.

204155401362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281205814 (or 281205803 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 204155401362 its reverse (263104551402), we get a palindrome (467259952764).

The spelling of 204155401362 in words is "two hundred four billion, one hundred fifty-five million, four hundred one thousand, three hundred sixty-two".