628161066490 has 32 divisors (see below), whose sum is σ = 1197673439040. Its totient is φ = 236390863104.

The previous prime is 628161066469. The next prime is 628161066517. The reversal of 628161066490 is 94660161826.

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, 296032 + ... + 1159291.

It is an arithmetic number, because the mean of its divisors is an integer number (37427294970).

Almost surely, 2^628161066490 is an apocalyptic number.

628161066490 is a deficient number, since it is larger than the sum of its proper divisors (569512372550).

628161066490 is a wasteful number, since it uses less digits than its factorization.

628161066490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457886.

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 628161066490 in words is "six hundred twenty-eight billion, one hundred sixty-one million, sixty-six thousand, four hundred ninety".