542226551640 has 64 divisors (see below), whose sum is σ = 1712294380800. Its totient is φ = 136983549312.

The previous prime is 542226551611. The next prime is 542226551641. The reversal of 542226551640 is 46155622245.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 542226551592 and 542226551601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542226551641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118907052 + ... + 118911611.

It is an arithmetic number, because the mean of its divisors is an integer number (26754599700).

Almost surely, 2^542226551640 is an apocalyptic number.

It is an amenable number.

542226551640 is an abundant number, since it is smaller than the sum of its proper divisors (1170067829160).

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

542226551640 is a wasteful number, since it uses less digits than its factorization.

542226551640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237818696 (or 237818692 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 542226551640 in words is "five hundred forty-two billion, two hundred twenty-six million, five hundred fifty-one thousand, six hundred forty".