36554691690 has 336 divisors, whose sum is σ = 112253941800. Its totient is φ = 8550178560.

The previous prime is 36554691653. The next prime is 36554691703. The reversal of 36554691690 is 9619645563.

36554691690 is a `hidden beast` number, since 3 + 6 + 5 + 546 + 9 + 1 + 6 + 90 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 20920440321 + 15634251369 = 144639^2 + 125037^2 .

It is a super-2 number, since 2×36554691690² (a number of 22 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 25579896 + ... + 25581324.

Almost surely, 2^36554691690 is an apocalyptic number.

36554691690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 36554691690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56126970900).

36554691690 is an abundant number, since it is smaller than the sum of its proper divisors (75699250110).

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

36554691690 is a wasteful number, since it uses less digits than its factorization.

36554691690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505 (or 1479 counting only the distinct ones).

The product of its (nonzero) digits is 5248800, while the sum is 54.

The spelling of 36554691690 in words is "thirty-six billion, five hundred fifty-four million, six hundred ninety-one thousand, six hundred ninety".