720155651028 has 48 divisors (see below), whose sum is σ = 1882667365824. Its totient is φ = 212330903040.

The previous prime is 720155651021. The next prime is 720155651029. The reversal of 720155651028 is 820156551027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720155651021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73721125 + ... + 73730892.

It is an arithmetic number, because the mean of its divisors is an integer number (39222236788).

Almost surely, 2^720155651028 is an apocalyptic number.

It is an amenable number.

720155651028 is an abundant number, since it is smaller than the sum of its proper divisors (1162511714796).

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

720155651028 is a wasteful number, since it uses less digits than its factorization.

720155651028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147452072 (or 147452070 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 42.

The spelling of 720155651028 in words is "seven hundred twenty billion, one hundred fifty-five million, six hundred fifty-one thousand, twenty-eight".