36551497860 has 120 divisors (see below), whose sum is σ = 114937906776. Its totient is φ = 9723732480.

The previous prime is 36551497849. The next prime is 36551497861. The reversal of 36551497860 is 6879415563.

36551497860 is a `hidden beast` number, since 3 + 6 + 551 + 4 + 9 + 7 + 86 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 119377476 + 36432120384 = 10926^2 + 190872^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 36551497797 and 36551497806.

It is not an unprimeable number, because it can be changed into a prime (36551497861) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 655224 + ... + 708816.

Almost surely, 2^36551497860 is an apocalyptic number.

36551497860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36551497860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57468953388).

36551497860 is an abundant number, since it is smaller than the sum of its proper divisors (78386408916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36551497860 is a wasteful number, since it uses less digits than its factorization.

36551497860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54035 (or 54024 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 36551497860 in words is "thirty-six billion, five hundred fifty-one million, four hundred ninety-seven thousand, eight hundred sixty".