16612532666 has 16 divisors (see below), whose sum is σ = 25783367040. Its totient is φ = 8018194800.

The previous prime is 16612532609. The next prime is 16612532687. The reversal of 16612532666 is 66623521661.

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, 283595 + ... + 337121.

It is an arithmetic number, because the mean of its divisors is an integer number (1611460440).

Almost surely, 2^16612532666 is an apocalyptic number.

16612532666 is a deficient number, since it is larger than the sum of its proper divisors (9170834374).

16612532666 is a wasteful number, since it uses less digits than its factorization.

16612532666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58909.

The product of its digits is 466560, while the sum is 44.

The spelling of 16612532666 in words is "sixteen billion, six hundred twelve million, five hundred thirty-two thousand, six hundred sixty-six".