83756840255511 has 16 divisors (see below), whose sum is σ = 111716214974304. Its totient is φ = 55817680431744.

The previous prime is 83756840255477. The next prime is 83756840255659. The reversal of 83756840255511 is 11555204865738.

It is not a de Polignac number, because 83756840255511 - 2¹⁰ = 83756840254487 is a prime.

It is a super-2 number, since 2×83756840255511² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83756840255311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495245481 + ... + 495414573.

It is an arithmetic number, because the mean of its divisors is an integer number (6982263435894).

Almost surely, 2^{83756840255511} is an apocalyptic number.

83756840255511 is a deficient number, since it is larger than the sum of its proper divisors (27959374718793).

83756840255511 is a wasteful number, since it uses less digits than its factorization.

83756840255511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227890.

The product of its (nonzero) digits is 40320000, while the sum is 60.

The spelling of 83756840255511 in words is "eighty-three trillion, seven hundred fifty-six billion, eight hundred forty million, two hundred fifty-five thousand, five hundred eleven".