6662971401 has 8 divisors (see below), whose sum is σ = 8885316384. Its totient is φ = 4441303680.

The previous prime is 6662971349. The next prime is 6662971409. The reversal of 6662971401 is 1041792666.

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

It is not a de Polignac number, because 6662971401 - 2¹¹ = 6662969353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6662971409) 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, 145896 + ... + 186041.

It is an arithmetic number, because the mean of its divisors is an integer number (1110664548).

Almost surely, 2^6662971401 is an apocalyptic number.

It is an amenable number.

6662971401 is a deficient number, since it is larger than the sum of its proper divisors (2222344983).

6662971401 is a wasteful number, since it uses less digits than its factorization.

6662971401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338631.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 6662971401 is about 81627.0261678079. The cubic root of 6662971401 is about 1881.7242556802.

The spelling of 6662971401 in words is "six billion, six hundred sixty-two million, nine hundred seventy-one thousand, four hundred one".