2664620542 has 8 divisors (see below), whose sum is σ = 3998188296. Its totient is φ = 1331891112.

The previous prime is 2664620537. The next prime is 2664620549. The reversal of 2664620542 is 2450264662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664620549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201573 + ... + 214384.

It is an arithmetic number, because the mean of its divisors is an integer number (499773537).

Almost surely, 2^2664620542 is an apocalyptic number.

2664620542 is a deficient number, since it is larger than the sum of its proper divisors (1333567754).

2664620542 is a wasteful number, since it uses less digits than its factorization.

2664620542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419162.

The product of its (nonzero) digits is 138240, while the sum is 37.

The square root of 2664620542 is about 51619.9626307497. The cubic root of 2664620542 is about 1386.3677820471.

The spelling of 2664620542 in words is "two billion, six hundred sixty-four million, six hundred twenty thousand, five hundred forty-two".