661214053114 has 16 divisors (see below), whose sum is σ = 999274259520. Its totient is φ = 328126514400.

The previous prime is 661214053067. The next prime is 661214053127. The reversal of 661214053114 is 411350412166.

It is a super-2 number, since 2×661214053114² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 661214053114.

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, 628684 + ... + 1310599.

It is an arithmetic number, because the mean of its divisors is an integer number (62454641220).

Almost surely, 2^661214053114 is an apocalyptic number.

661214053114 is a deficient number, since it is larger than the sum of its proper divisors (338060206406).

661214053114 is a wasteful number, since it uses less digits than its factorization.

661214053114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1940565.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 661214053114 in words is "six hundred sixty-one billion, two hundred fourteen million, fifty-three thousand, one hundred fourteen".