401866570560 has 896 divisors, whose sum is σ = 1632050380800. Its totient is φ = 81497456640.

The previous prime is 401866570549. The next prime is 401866570583. The reversal of 401866570560 is 65075668104.

It is a super-2 number, since 2×401866570560² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 484760226 + ... + 484761054.

It is an arithmetic number, because the mean of its divisors is an integer number (1821484800).

Almost surely, 2^401866570560 is an apocalyptic number.

401866570560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401866570560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (816025190400).

401866570560 is an abundant number, since it is smaller than the sum of its proper divisors (1230183810240).

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

401866570560 is a wasteful number, since it uses less digits than its factorization.

401866570560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079 (or 1069 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 401866570560 in words is "four hundred one billion, eight hundred sixty-six million, five hundred seventy thousand, five hundred sixty".