85156251554 has 24 divisors (see below), whose sum is σ = 140421321264. Its totient is φ = 38702129400.

The previous prime is 85156251553. The next prime is 85156251617. The reversal of 85156251554 is 45515265158.

It is a super-3 number, since 3×85156251554³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85156251499 and 85156251508.

It is not an unprimeable number, because it can be changed into a prime (85156251553) 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, 2180669 + ... + 2219375.

It is an arithmetic number, because the mean of its divisors is an integer number (5850888386).

Almost surely, 2^85156251554 is an apocalyptic number.

85156251554 is a deficient number, since it is larger than the sum of its proper divisors (55265069710).

85156251554 is a wasteful number, since it uses less digits than its factorization.

85156251554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47822 (or 47811 counting only the distinct ones).

The product of its digits is 1200000, while the sum is 47.

The spelling of 85156251554 in words is "eighty-five billion, one hundred fifty-six million, two hundred fifty-one thousand, five hundred fifty-four".