85078156653503 has 12 divisors (see below), whose sum is σ = 92126750265720. Its totient is φ = 78533087214816.

The previous prime is 85078156653473. The next prime is 85078156653521. The reversal of 85078156653503 is 30535665187058.

It is a happy number.

It is not a de Polignac number, because 85078156653503 - 2⁶ = 85078156653439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85078156653403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21259688 + ... + 24942546.

It is an arithmetic number, because the mean of its divisors is an integer number (7677229188810).

Almost surely, 2^{85078156653503} is an apocalyptic number.

85078156653503 is a deficient number, since it is larger than the sum of its proper divisors (7048593612217).

85078156653503 is a wasteful number, since it uses less digits than its factorization.

85078156653503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3819578 (or 3819565 counting only the distinct ones).

The product of its (nonzero) digits is 90720000, while the sum is 62.

The spelling of 85078156653503 in words is "eighty-five trillion, seventy-eight billion, one hundred fifty-six million, six hundred fifty-three thousand, five hundred three".