1085168500251 has 16 divisors (see below), whose sum is σ = 1578467435520. Its totient is φ = 657660993120.

The previous prime is 1085168500231. The next prime is 1085168500271. The reversal of 1085168500251 is 1520058615801.

It is an interprime number because it is at equal distance from previous prime (1085168500231) and next prime (1085168500271).

It is not a de Polignac number, because 1085168500251 - 2⁶ = 1085168500187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1085168500231) 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, 949110 + ... + 1752468.

It is an arithmetic number, because the mean of its divisors is an integer number (98654214720).

Almost surely, 2^{1085168500251} is an apocalyptic number.

1085168500251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1085168500251 is a deficient number, since it is larger than the sum of its proper divisors (493298935269).

1085168500251 is a wasteful number, since it uses less digits than its factorization.

1085168500251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844306.

The product of its (nonzero) digits is 96000, while the sum is 42.

The spelling of 1085168500251 in words is "one trillion, eighty-five billion, one hundred sixty-eight million, five hundred thousand, two hundred fifty-one".