651165001066 has 8 divisors (see below), whose sum is σ = 1010428450020. Its totient is φ = 314355517728.

The previous prime is 651165001033. The next prime is 651165001099. The reversal of 651165001066 is 660100561156.

It is an interprime number because it is at equal distance from previous prime (651165001033) and next prime (651165001099).

It can be written as a sum of positive squares in 2 ways, for example, as 637488868041 + 13676133025 = 798429^2 + 116945^2 .

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

It is a super-2 number, since 2×651165001066² (a number of 24 digits) contains 22 as substring.

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, 5613491331 + ... + 5613491446.

Almost surely, 2^651165001066 is an apocalyptic number.

651165001066 is a deficient number, since it is larger than the sum of its proper divisors (359263448954).

651165001066 is a wasteful number, since it uses less digits than its factorization.

651165001066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11226982808.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 651165001066 in words is "six hundred fifty-one billion, one hundred sixty-five million, one thousand, sixty-six".