6620251774 has 8 divisors (see below), whose sum is σ = 9938121480. Its totient is φ = 3307544616.

The previous prime is 6620251769. The next prime is 6620251801. The reversal of 6620251774 is 4771520266.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1287429 + ... + 1292560.

It is an arithmetic number, because the mean of its divisors is an integer number (1242265185).

Almost surely, 2^6620251774 is an apocalyptic number.

6620251774 is a deficient number, since it is larger than the sum of its proper divisors (3317869706).

6620251774 is a wasteful number, since it uses less digits than its factorization.

6620251774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2581274.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 6620251774 is about 81364.9296318752. The cubic root of 6620251774 is about 1877.6940731758.

The spelling of 6620251774 in words is "six billion, six hundred twenty million, two hundred fifty-one thousand, seven hundred seventy-four".