154236421202646 has 32 divisors (see below), whose sum is σ = 310439174490720. Its totient is φ = 51084421629696.

The previous prime is 154236421202641. The next prime is 154236421202701. The reversal of 154236421202646 is 646202124632451.

It is a happy number.

154236421202646 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 154236421202595 and 154236421202604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154236421202641) 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, 359739970 + ... + 360168458.

It is an arithmetic number, because the mean of its divisors is an integer number (9701224202835).

Almost surely, 2^{154236421202646} is an apocalyptic number.

154236421202646 is an abundant number, since it is smaller than the sum of its proper divisors (156202753288074).

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

154236421202646 is a wasteful number, since it uses less digits than its factorization.

154236421202646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810768.

The product of its (nonzero) digits is 3317760, while the sum is 48.

The spelling of 154236421202646 in words is "one hundred fifty-four trillion, two hundred thirty-six billion, four hundred twenty-one million, two hundred two thousand, six hundred forty-six".