661026614 has 16 divisors (see below), whose sum is σ = 1011709440. Its totient is φ = 323847720.

The previous prime is 661026557. The next prime is 661026617. The reversal of 661026614 is 416620166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (661026617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8867 + ... + 37425.

It is an arithmetic number, because the mean of its divisors is an integer number (63231840).

Almost surely, 2^661026614 is an apocalyptic number.

661026614 is a deficient number, since it is larger than the sum of its proper divisors (350682826).

661026614 is a wasteful number, since it uses less digits than its factorization.

661026614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28795.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 661026614 is about 25710.4378414682. The cubic root of 661026614 is about 871.1099647930.

The spelling of 661026614 in words is "six hundred sixty-one million, twenty-six thousand, six hundred fourteen".