4660561542 has 64 divisors (see below), whose sum is σ = 11502167040. Its totient is φ = 1225943424.

The previous prime is 4660561537. The next prime is 4660561559. The reversal of 4660561542 is 2451650664.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 4660561542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201423 + ... + 223365.

It is an arithmetic number, because the mean of its divisors is an integer number (179721360).

Almost surely, 2^4660561542 is an apocalyptic number.

4660561542 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 4660561542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5751083520).

4660561542 is an abundant number, since it is smaller than the sum of its proper divisors (6841605498).

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

4660561542 is a wasteful number, since it uses less digits than its factorization.

4660561542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22357.

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 4660561542 is about 68268.3055451064. The cubic root of 4660561542 is about 1670.3702600925.

The spelling of 4660561542 in words is "four billion, six hundred sixty million, five hundred sixty-one thousand, five hundred forty-two".