420018420415166 has 4 divisors (see below), whose sum is σ = 630027630622752. Its totient is φ = 210009210207582.

The previous prime is 420018420415079. The next prime is 420018420415177. The reversal of 420018420415166 is 661514024810024.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×420018420415166² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105004605103790 + ... + 105004605103793.

It is an arithmetic number, because the mean of its divisors is an integer number (157506907655688).

Almost surely, 2^{420018420415166} is an apocalyptic number.

420018420415166 is a deficient number, since it is larger than the sum of its proper divisors (210009210207586).

420018420415166 is a wasteful number, since it uses less digits than its factorization.

420018420415166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210009210207585.

The product of its (nonzero) digits is 368640, while the sum is 44.

The spelling of 420018420415166 in words is "four hundred twenty trillion, eighteen billion, four hundred twenty million, four hundred fifteen thousand, one hundred sixty-six".