10040690020640 has 48 divisors (see below), whose sum is σ = 23866658641728. Its totient is φ = 3991636267776.

The previous prime is 10040690020549. The next prime is 10040690020651. The reversal of 10040690020640 is 4602009604001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 10040690020597 and 10040690020606.

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, 192471812 + ... + 192523971.

It is an arithmetic number, because the mean of its divisors is an integer number (497222055036).

Almost surely, 2^{10040690020640} is an apocalyptic number.

10040690020640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10040690020640 is an abundant number, since it is smaller than the sum of its proper divisors (13825968621088).

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

10040690020640 is a wasteful number, since it uses less digits than its factorization.

10040690020640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384995961 (or 384995953 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

Adding to 10040690020640 its reverse (4602009604001), we get a palindrome (14642699624641).

The spelling of 10040690020640 in words is "ten trillion, forty billion, six hundred ninety million, twenty thousand, six hundred forty".