640115511046 has 16 divisors (see below), whose sum is σ = 1047518176320. Its totient is φ = 290945920680.

The previous prime is 640115511031. The next prime is 640115511067.

640115511046 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361056 + ... + 1187683.

It is an arithmetic number, because the mean of its divisors is an integer number (65469886020).

Almost surely, 2^640115511046 is an apocalyptic number.

640115511046 is a deficient number, since it is larger than the sum of its proper divisors (407402665274).

640115511046 is a wasteful number, since it uses less digits than its factorization.

640115511046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567539.

The product of its (nonzero) digits is 14400, while the sum is 34.

The spelling of 640115511046 in words is "six hundred forty billion, one hundred fifteen million, five hundred eleven thousand, forty-six".