601016556506 has 4 divisors (see below), whose sum is σ = 901524834762. Its totient is φ = 300508278252.

The previous prime is 601016556461. The next prime is 601016556571. The reversal of 601016556506 is 605655610106.

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

It can be written as a sum of positive squares in only one way, i.e., 593838230881 + 7178325625 = 770609^2 + 84725^2 .

It is a super-3 number, since 3×601016556506³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150254139125 + ... + 150254139128.

Almost surely, 2^601016556506 is an apocalyptic number.

601016556506 is a deficient number, since it is larger than the sum of its proper divisors (300508278256).

601016556506 is a wasteful number, since it uses less digits than its factorization.

601016556506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300508278255.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 601016556506 in words is "six hundred one billion, sixteen million, five hundred fifty-six thousand, five hundred six".