2061570707616 has 144 divisors (see below), whose sum is σ = 6296573737440. Its totient is φ = 588887308800.

The previous prime is 2061570707611. The next prime is 2061570707653. The reversal of 2061570707616 is 6167070751602.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (2061570707611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21831190 + ... + 21925418.

It is an arithmetic number, because the mean of its divisors is an integer number (43726206510).

Almost surely, 2^{2061570707616} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2061570707616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3148286868720).

2061570707616 is an abundant number, since it is smaller than the sum of its proper divisors (4235003029824).

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

2061570707616 is a wasteful number, since it uses less digits than its factorization.

2061570707616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98907 (or 98892 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 48.

The spelling of 2061570707616 in words is "two trillion, sixty-one billion, five hundred seventy million, seven hundred seven thousand, six hundred sixteen".