402155032545 has 240 divisors, whose sum is σ = 913295547648. Its totient is φ = 165497333760.

The previous prime is 402155032529. The next prime is 402155032567. The reversal of 402155032545 is 545230551204.

402155032545 is a `hidden beast` number, since 4 + 0 + 21 + 550 + 32 + 54 + 5 = 666.

It is not a de Polignac number, because 402155032545 - 2⁴ = 402155032529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 18833575 + ... + 18854915.

Almost surely, 2^402155032545 is an apocalyptic number.

402155032545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

402155032545 is an abundant number, since it is smaller than the sum of its proper divisors (511140515103).

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

402155032545 is a wasteful number, since it uses less digits than its factorization.

402155032545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21422 (or 21396 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

Adding to 402155032545 its reverse (545230551204), we get a palindrome (947385583749).

The spelling of 402155032545 in words is "four hundred two billion, one hundred fifty-five million, thirty-two thousand, five hundred forty-five".