1002662001 has 24 divisors (see below), whose sum is σ = 1622659584. Its totient is φ = 591248160.

The previous prime is 1002661999. The next prime is 1002662021.

It is a happy number.

1002662001 is a `hidden beast` number, since 1 + 0 + 0 + 2 + 662 + 0 + 0 + 1 = 666.

1002662001 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1002662001 - 2¹ = 1002661999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1002662021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133201 + ... + 140526.

It is an arithmetic number, because the mean of its divisors is an integer number (67610816).

Almost surely, 2^1002662001 is an apocalyptic number.

1002662001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1002662001 is a deficient number, since it is larger than the sum of its proper divisors (619997583).

1002662001 is a wasteful number, since it uses less digits than its factorization.

1002662001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273781 (or 273778 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1002662001 is about 31664.8385595127. The cubic root of 1002662001 is about 1000.8865474680.

It can be divided in two parts, 10026 and 62001, that added together give a palindrome (72027).

The spelling of 1002662001 in words is "one billion, two million, six hundred sixty-two thousand, one".