355206636240 has 160 divisors (see below), whose sum is σ = 1110721873536. Its totient is φ = 93899120640.

The previous prime is 355206636227. The next prime is 355206636247. The reversal of 355206636240 is 42636602553.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 355206636192 and 355206636201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355206636247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32472052 + ... + 32482988.

Almost surely, 2^355206636240 is an apocalyptic number.

355206636240 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 355206636240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (555360936768).

355206636240 is an abundant number, since it is smaller than the sum of its proper divisors (755515237296).

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

355206636240 is a wasteful number, since it uses less digits than its factorization.

355206636240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12117 (or 12111 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 42.

The spelling of 355206636240 in words is "three hundred fifty-five billion, two hundred six million, six hundred thirty-six thousand, two hundred forty".