401655543455 has 8 divisors (see below), whose sum is σ = 507354370800. Its totient is φ = 304412622336.

The previous prime is 401655543427. The next prime is 401655543479. The reversal of 401655543455 is 554345556104.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 401655543455 - 2¹⁶ = 401655477919 is a prime.

It is a super-3 number, since 3×401655543455³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2113976450 + ... + 2113976639.

It is an arithmetic number, because the mean of its divisors is an integer number (63419296350).

Almost surely, 2^401655543455 is an apocalyptic number.

401655543455 is a deficient number, since it is larger than the sum of its proper divisors (105698827345).

401655543455 is a wasteful number, since it uses less digits than its factorization.

401655543455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4227953113.

The product of its (nonzero) digits is 3600000, while the sum is 47.

The spelling of 401655543455 in words is "four hundred one billion, six hundred fifty-five million, five hundred forty-three thousand, four hundred fifty-five".