55010078120640 has 56 divisors (see below), whose sum is σ = 174656998036080. Its totient is φ = 14669354165248.

The previous prime is 55010078120611. The next prime is 55010078120693. The reversal of 55010078120640 is 4602187001055.

It is a super-2 number, since 2×55010078120640² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28651081395 + ... + 28651083314.

It is an arithmetic number, because the mean of its divisors is an integer number (3118874964930).

Almost surely, 2^{55010078120640} is an apocalyptic number.

It is an amenable number.

55010078120640 is an abundant number, since it is smaller than the sum of its proper divisors (119646919915440).

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

55010078120640 is a wasteful number, since it uses less digits than its factorization.

55010078120640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57302164729 (or 57302164719 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The spelling of 55010078120640 in words is "fifty-five trillion, ten billion, seventy-eight million, one hundred twenty thousand, six hundred forty".