1206570990540 has 24 divisors (see below), whose sum is σ = 3378398773680. Its totient is φ = 321752264128.

The previous prime is 1206570990491. The next prime is 1206570990571. The reversal of 1206570990540 is 450990756021.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1206570990540.

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, 10054758195 + ... + 10054758314.

It is an arithmetic number, because the mean of its divisors is an integer number (140766615570).

Almost surely, 2^{1206570990540} is an apocalyptic number.

1206570990540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1206570990540 is an abundant number, since it is smaller than the sum of its proper divisors (2171827783140).

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

1206570990540 is a wasteful number, since it uses less digits than its factorization.

1206570990540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20109516521 (or 20109516519 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 48.

The spelling of 1206570990540 in words is "one trillion, two hundred six billion, five hundred seventy million, nine hundred ninety thousand, five hundred forty".