401655603066 has 8 divisors (see below), whose sum is σ = 803311206144. Its totient is φ = 133885201020.

The previous prime is 401655603007. The next prime is 401655603073. The reversal of 401655603066 is 660306556104.

It is a sphenic number, since it is the product of 3 distinct primes.

401655603066 is an admirable number.

It is a super-2 number, since 2×401655603066² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33471300250 + ... + 33471300261.

It is an arithmetic number, because the mean of its divisors is an integer number (100413900768).

Almost surely, 2^401655603066 is an apocalyptic number.

401655603066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

401655603066 is a wasteful number, since it uses less digits than its factorization.

401655603066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66942600516.

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 401655603066 in words is "four hundred one billion, six hundred fifty-five million, six hundred three thousand, sixty-six".