669900031511770 has 16 divisors (see below), whose sum is σ = 1210404923861760. Its totient is φ = 266941153240144.

The previous prime is 669900031511717. The next prime is 669900031511813. The reversal of 669900031511770 is 77115130009966.

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, 127357417810 + ... + 127357423069.

It is an arithmetic number, because the mean of its divisors is an integer number (75650307741360).

Almost surely, 2^{669900031511770} is an apocalyptic number.

669900031511770 is a deficient number, since it is larger than the sum of its proper divisors (540504892349990).

669900031511770 is a wasteful number, since it uses less digits than its factorization.

669900031511770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254714841149.

The product of its (nonzero) digits is 2143260, while the sum is 55.

The spelling of 669900031511770 in words is "six hundred sixty-nine trillion, nine hundred billion, thirty-one million, five hundred eleven thousand, seven hundred seventy".