420502225556656 has 40 divisors (see below), whose sum is σ = 826298576006400. Its totient is φ = 207264604088640.

The previous prime is 420502225556641. The next prime is 420502225556663. The reversal of 420502225556656 is 656655522205024.

It is a junction number, because it is equal to n+sod(n) for n = 420502225556597 and 420502225556606.

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, 13181796 + ... + 31855363.

It is an arithmetic number, because the mean of its divisors is an integer number (20657464400160).

Almost surely, 2^{420502225556656} is an apocalyptic number.

It is an amenable number.

420502225556656 is a deficient number, since it is larger than the sum of its proper divisors (405796350449744).

420502225556656 is a wasteful number, since it uses less digits than its factorization.

420502225556656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45045457 (or 45045451 counting only the distinct ones).

The product of its (nonzero) digits is 43200000, while the sum is 55.

The spelling of 420502225556656 in words is "four hundred twenty trillion, five hundred two billion, two hundred twenty-five million, five hundred fifty-six thousand, six hundred fifty-six".