536658764040 has 384 divisors, whose sum is σ = 2123008392960. Its totient is φ = 119349033984.

The previous prime is 536658763999. The next prime is 536658764063. The reversal of 536658764040 is 40467856635.

536658764040 is a `hidden beast` number, since 53 + 6 + 6 + 587 + 6 + 4 + 0 + 4 + 0 = 666.

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 95 ways as a sum of consecutive naturals, for example, 2410894 + ... + 2624066.

It is an arithmetic number, because the mean of its divisors is an integer number (5528667690).

Almost surely, 2^536658764040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 536658764040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1061504196480).

536658764040 is an abundant number, since it is smaller than the sum of its proper divisors (1586349628920).

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

536658764040 is a wasteful number, since it uses less digits than its factorization.

536658764040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213243 (or 213227 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 54.

The spelling of 536658764040 in words is "five hundred thirty-six billion, six hundred fifty-eight million, seven hundred sixty-four thousand, forty".