401655543530 has 16 divisors (see below), whose sum is σ = 724993856640. Its totient is φ = 160214688912.

The previous prime is 401655543517. The next prime is 401655543623. The reversal of 401655543530 is 35345556104.

It is a super-2 number, since 2×401655543530² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55937294 + ... + 55944473.

It is an arithmetic number, because the mean of its divisors is an integer number (45312116040).

Almost surely, 2^401655543530 is an apocalyptic number.

401655543530 is a deficient number, since it is larger than the sum of its proper divisors (323338313110).

401655543530 is a wasteful number, since it uses less digits than its factorization.

401655543530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111882133.

The product of its (nonzero) digits is 540000, while the sum is 41.

The spelling of 401655543530 in words is "four hundred one billion, six hundred fifty-five million, five hundred forty-three thousand, five hundred thirty".