654630665070 has 128 divisors (see below), whose sum is σ = 1668384345600. Its totient is φ = 163926194688.

The previous prime is 654630665069. The next prime is 654630665137. The reversal of 654630665070 is 70566036456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 51730864 + ... + 51743516.

It is an arithmetic number, because the mean of its divisors is an integer number (13034252700).

Almost surely, 2^654630665070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654630665070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (834192172800).

654630665070 is an abundant number, since it is smaller than the sum of its proper divisors (1013753680530).

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

654630665070 is a wasteful number, since it uses less digits than its factorization.

654630665070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13474.

The product of its (nonzero) digits is 2721600, while the sum is 48.

The spelling of 654630665070 in words is "six hundred fifty-four billion, six hundred thirty million, six hundred sixty-five thousand, seventy".