70616661 has 8 divisors (see below), whose sum is σ = 94522944. Its totient is φ = 46894080.

The previous prime is 70616659. The next prime is 70616717. The reversal of 70616661 is 16661607.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70616661 - 2¹ = 70616659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70616641) 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, 45025 + ... + 46566.

It is an arithmetic number, because the mean of its divisors is an integer number (11815368).

Almost surely, 2^70616661 is an apocalyptic number.

It is an amenable number.

70616661 is a deficient number, since it is larger than the sum of its proper divisors (23906283).

70616661 is a wasteful number, since it uses less digits than its factorization.

70616661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91851.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 70616661 is about 8403.3720017621. The cubic root of 70616661 is about 413.3352010986.

The spelling of 70616661 in words is "seventy million, six hundred sixteen thousand, six hundred sixty-one".