355402641640 has 32 divisors (see below), whose sum is σ = 799761312000. Its totient is φ = 142142324544.

The previous prime is 355402641569. The next prime is 355402641661. The reversal of 355402641640 is 46146204553.

It is a super-2 number, since 2×355402641640² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 355402641593 and 355402641602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276000 + ... + 887119.

It is an arithmetic number, because the mean of its divisors is an integer number (24992541000).

Almost surely, 2^355402641640 is an apocalyptic number.

It is an amenable number.

355402641640 is an abundant number, since it is smaller than the sum of its proper divisors (444358670360).

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

355402641640 is a wasteful number, since it uses less digits than its factorization.

355402641640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170769 (or 1170765 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 355402641640 in words is "three hundred fifty-five billion, four hundred two million, six hundred forty-one thousand, six hundred forty".