1620705101070 has 32 divisors (see below), whose sum is σ = 4243300629120. Its totient is φ = 392898206240.

The previous prime is 1620705101051. The next prime is 1620705101087. The reversal of 1620705101070 is 701015070261.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2455613460 + ... + 2455614119.

It is an arithmetic number, because the mean of its divisors is an integer number (132603144660).

Almost surely, 2^{1620705101070} is an apocalyptic number.

1620705101070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1620705101070 is an abundant number, since it is smaller than the sum of its proper divisors (2622595528050).

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

1620705101070 is a wasteful number, since it uses less digits than its factorization.

1620705101070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4911227600.

The product of its (nonzero) digits is 2940, while the sum is 30.

The spelling of 1620705101070 in words is "one trillion, six hundred twenty billion, seven hundred five million, one hundred one thousand, seventy".