4551511345620 has 96 divisors (see below), whose sum is σ = 12934638941952. Its totient is φ = 1195724464128.

The previous prime is 4551511345609. The next prime is 4551511345621. The reversal of 4551511345620 is 265431151554.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4551511345621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 715267 + ... + 3100746.

It is an arithmetic number, because the mean of its divisors is an integer number (134735822312).

Almost surely, 2^{4551511345620} is an apocalyptic number.

It is an amenable number.

4551511345620 is an abundant number, since it is smaller than the sum of its proper divisors (8383127596332).

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

4551511345620 is a wasteful number, since it uses less digits than its factorization.

4551511345620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3816321 (or 3816319 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 42.

The spelling of 4551511345620 in words is "four trillion, five hundred fifty-one billion, five hundred eleven million, three hundred forty-five thousand, six hundred twenty".