1006655005620 has 144 divisors (see below), whose sum is σ = 3475944081792. Its totient is φ = 233427237120.

The previous prime is 1006655005589. The next prime is 1006655005651. The reversal of 1006655005620 is 265005566001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1006655005589) and next prime (1006655005651).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11006887 + ... + 11097966.

It is an arithmetic number, because the mean of its divisors is an integer number (24138500568).

Almost surely, 2^{1006655005620} is an apocalyptic number.

1006655005620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1006655005620 is an abundant number, since it is smaller than the sum of its proper divisors (2469289076172).

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

1006655005620 is a wasteful number, since it uses less digits than its factorization.

1006655005620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22104902 (or 22104897 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 1006655005620 in words is "one trillion, six billion, six hundred fifty-five million, five thousand, six hundred twenty".