105151561497 has 18 divisors (see below), whose sum is σ = 154186432218. Its totient is φ = 69054730272.

The previous prime is 105151561447. The next prime is 105151561511. The reversal of 105151561497 is 794165151501.

105151561497 is a `hidden beast` number, since 1 + 0 + 5 + 1 + 5 + 156 + 1 + 497 = 666.

It can be written as a sum of positive squares in only one way, i.e., 77386337856 + 27765223641 = 278184^2 + 166629^2 .

It is not a de Polignac number, because 105151561497 - 2⁷ = 105151561369 is a prime.

It is a super-2 number, since 2×105151561497² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105151561447) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1260948 + ... + 1341749.

It is an arithmetic number, because the mean of its divisors is an integer number (8565912901).

Almost surely, 2^105151561497 is an apocalyptic number.

It is an amenable number.

105151561497 is a deficient number, since it is larger than the sum of its proper divisors (49034870721).

105151561497 is an equidigital number, since it uses as much as digits as its factorization.

105151561497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602837 (or 2602767 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 45.

The spelling of 105151561497 in words is "one hundred five billion, one hundred fifty-one million, five hundred sixty-one thousand, four hundred ninety-seven".