6651950939570 has 64 divisors (see below), whose sum is σ = 12800306534400. Its totient is φ = 2481689456640.

The previous prime is 6651950939507. The next prime is 6651950939573. The reversal of 6651950939570 is 759390591566.

It is a junction number, because it is equal to n+sod(n) for n = 6651950939497 and 6651950939506.

It is not an unprimeable number, because it can be changed into a prime (6651950939573) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2575286 + ... + 4464974.

It is an arithmetic number, because the mean of its divisors is an integer number (200004789600).

Almost surely, 2^{6651950939570} is an apocalyptic number.

6651950939570 is a deficient number, since it is larger than the sum of its proper divisors (6148355594830).

6651950939570 is a wasteful number, since it uses less digits than its factorization.

6651950939570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890003.

The product of its (nonzero) digits is 68890500, while the sum is 65.

The spelling of 6651950939570 in words is "six trillion, six hundred fifty-one billion, nine hundred fifty million, nine hundred thirty-nine thousand, five hundred seventy".