1476220661 has 8 divisors (see below), whose sum is σ = 1557714240. Its totient is φ = 1396169632.

The previous prime is 1476220643. The next prime is 1476220699. The reversal of 1476220661 is 1660226741.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1476220661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1476220631) 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, 358535 + ... + 362628.

It is an arithmetic number, because the mean of its divisors is an integer number (194714280).

Almost surely, 2^1476220661 is an apocalyptic number.

It is an amenable number.

1476220661 is a deficient number, since it is larger than the sum of its proper divisors (81493579).

1476220661 is an equidigital number, since it uses as much as digits as its factorization.

1476220661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721275.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 1476220661 is about 38421.6171054785. The cubic root of 1476220661 is about 1138.6329825781.

The spelling of 1476220661 in words is "one billion, four hundred seventy-six million, two hundred twenty thousand, six hundred sixty-one".