401455552152 has 64 divisors (see below), whose sum is σ = 1048542900480. Its totient is φ = 127845398912.

The previous prime is 401455552117. The next prime is 401455552163. The reversal of 401455552152 is 251255554104.

It is a happy number.

It is a super-2 number, since 2×401455552152² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401455552152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16798 + ... + 896210.

It is an arithmetic number, because the mean of its divisors is an integer number (16383482820).

Almost surely, 2^401455552152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401455552152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (524271450240).

401455552152 is an abundant number, since it is smaller than the sum of its proper divisors (647087348328).

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

401455552152 is a wasteful number, since it uses less digits than its factorization.

401455552152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880272 (or 880268 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 39.

The spelling of 401455552152 in words is "four hundred one billion, four hundred fifty-five million, five hundred fifty-two thousand, one hundred fifty-two".