42156214655 has 8 divisors (see below), whose sum is σ = 51763910352. Its totient is φ = 32940669888.

The previous prime is 42156214651. The next prime is 42156214657. The reversal of 42156214655 is 55641265124.

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

It is a cyclic number.

It is not a de Polignac number, because 42156214655 - 2² = 42156214651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42156214651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98037494 + ... + 98037923.

It is an arithmetic number, because the mean of its divisors is an integer number (6470488794).

Almost surely, 2^42156214655 is an apocalyptic number.

42156214655 is a deficient number, since it is larger than the sum of its proper divisors (9607695697).

42156214655 is a wasteful number, since it uses less digits than its factorization.

42156214655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196075465.

The product of its digits is 288000, while the sum is 41.

Adding to 42156214655 its reverse (55641265124), we get a palindrome (97797479779).

The spelling of 42156214655 in words is "forty-two billion, one hundred fifty-six million, two hundred fourteen thousand, six hundred fifty-five".