10506552378 has 16 divisors (see below), whose sum is σ = 24014976960. Its totient is φ = 3001872096.

The previous prime is 10506552377. The next prime is 10506552391. The reversal of 10506552378 is 87325560501.

It is a super-2 number, since 2×10506552378² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 250156009 = 10506552378 / (1 + 0 + 5 + 0 + 6 + 5 + 5 + 2 + 3 + 7 + 8).

It is not an unprimeable number, because it can be changed into a prime (10506552377) 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, 125077963 + ... + 125078046.

It is an arithmetic number, because the mean of its divisors is an integer number (1500936060).

Almost surely, 2^10506552378 is an apocalyptic number.

10506552378 is an abundant number, since it is smaller than the sum of its proper divisors (13508424582).

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

10506552378 is a wasteful number, since it uses less digits than its factorization.

10506552378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250156021.

The product of its (nonzero) digits is 252000, while the sum is 42.

The spelling of 10506552378 in words is "ten billion, five hundred six million, five hundred fifty-two thousand, three hundred seventy-eight".