640150504611 has 8 divisors (see below), whose sum is σ = 863124276240. Its totient is φ = 421971868032.

The previous prime is 640150504607. The next prime is 640150504619. The reversal of 640150504611 is 116405051046.

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

It is not a de Polignac number, because 640150504611 - 2² = 640150504607 is a prime.

It is a super-2 number, since 2×640150504611² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (640150504619) 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, 1198783450 + ... + 1198783983.

It is an arithmetic number, because the mean of its divisors is an integer number (107890534530).

Almost surely, 2^640150504611 is an apocalyptic number.

640150504611 is a deficient number, since it is larger than the sum of its proper divisors (222973771629).

640150504611 is a wasteful number, since it uses less digits than its factorization.

640150504611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2397567525.

The product of its (nonzero) digits is 14400, while the sum is 33.

Adding to 640150504611 its reverse (116405051046), we get a palindrome (756555555657).

The spelling of 640150504611 in words is "six hundred forty billion, one hundred fifty million, five hundred four thousand, six hundred eleven".