61002668 has 24 divisors (see below), whose sum is σ = 110812800. Its totient is φ = 29352960.

The previous prime is 61002661. The next prime is 61002671. The reversal of 61002668 is 86620016.

It is a self number, because there is not a number n which added to its sum of digits gives 61002668.

It is not an unprimeable number, because it can be changed into a prime (61002661) 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, 22658 + ... + 25206.

It is an arithmetic number, because the mean of its divisors is an integer number (4617200).

Almost surely, 2^61002668 is an apocalyptic number.

It is an amenable number.

61002668 is a deficient number, since it is larger than the sum of its proper divisors (49810132).

61002668 is a wasteful number, since it uses less digits than its factorization.

61002668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777 (or 2775 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 61002668 is about 7810.4204752369. The cubic root of 61002668 is about 393.6554573383.

The spelling of 61002668 in words is "sixty-one million, two thousand, six hundred sixty-eight".