101216863478 has 16 divisors (see below), whose sum is σ = 155886380496. Its totient is φ = 49262771040.

The previous prime is 101216863477. The next prime is 101216863507. The reversal of 101216863478 is 874368612101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101216863477) 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, 1983233 + ... + 2033628.

It is an arithmetic number, because the mean of its divisors is an integer number (9742898781).

Almost surely, 2^101216863478 is an apocalyptic number.

101216863478 is a deficient number, since it is larger than the sum of its proper divisors (54669517018).

101216863478 is a wasteful number, since it uses less digits than its factorization.

101216863478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4017199.

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 101216863478 in words is "one hundred one billion, two hundred sixteen million, eight hundred sixty-three thousand, four hundred seventy-eight".