1606207703004 has 72 divisors (see below), whose sum is σ = 4120413839360. Its totient is φ = 527483148192.

The previous prime is 1606207702933. The next prime is 1606207703021. The reversal of 1606207703004 is 4003077026061.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1606207703004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 706869 + ... + 1926675.

Almost surely, 2^{1606207703004} 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 1606207703004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2060206919680).

1606207703004 is an abundant number, since it is smaller than the sum of its proper divisors (2514206136356).

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

1606207703004 is a wasteful number, since it uses less digits than its factorization.

1606207703004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220359 (or 1220354 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The spelling of 1606207703004 in words is "one trillion, six hundred six billion, two hundred seven million, seven hundred three thousand, four".