420055151540 has 48 divisors (see below), whose sum is σ = 897032828160. Its totient is φ = 165193916160.

The previous prime is 420055151533. The next prime is 420055151567. The reversal of 420055151540 is 45151550024.

It is a junction number, because it is equal to n+sod(n) for n = 420055151497 and 420055151506.

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, 97784 + ... + 921776.

It is an arithmetic number, because the mean of its divisors is an integer number (18688183920).

Almost surely, 2^420055151540 is an apocalyptic number.

It is an amenable number.

420055151540 is an abundant number, since it is smaller than the sum of its proper divisors (476977676620).

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

420055151540 is a wasteful number, since it uses less digits than its factorization.

420055151540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824432 (or 824430 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

The spelling of 420055151540 in words is "four hundred twenty billion, fifty-five million, one hundred fifty-one thousand, five hundred forty".